M. H. A. Ismail, M. S. Osman, K. Khairudin, M. F. Zainon, A. F. Mohd Eusoff, and Q. Zubli, “Statistical optimisation for the formulation of edible bird nest-based instant soup using Response Surface Methodology (RSM)”, MJCET, vol. 5, no. 2, pp. 115–122, Oct. 2022.